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Methods

This section describes the methods that can be used in code to manipulate objects related to the RangeSelector.

beginUpdate()

Prevents the widget from refreshing until the endUpdate() method is called.

The beginUpdate() and endUpdate() methods prevent the widget from excessive updates when you are changing multiple widget settings at once. After the beginUpdate() method is called, the widget does not update its UI until the endUpdate() method is called.

See Also

dispose()

Removes the widget from the DOM.

element()

Gets the root widget element.

Return Value:

Element (jQuery or HTML)

An HTML element or a jQuery element when you use jQuery.

See Also

endUpdate()

Refreshes the widget after a call of the beginUpdate() method.

Main article: beginUpdate()

See Also

exportTo(fileName, format)

Exports the widget.

Parameters:
fileName:

String

The name of the file to which the widget is about to be exported.

format:

String

The file's format.
Possible values: 'PNG' | 'PDF' | 'JPEG' | 'SVG' | 'GIF'

NOTE
IE9 and Safari on Mac OS do not implement an API for saving files. Therefore, exporting in these browsers requires setting up a server-side proxy. For details, refer to the export | proxyUrl option description.

View Demo

See Also

getDataSource()

Gets the DataSource instance.

Return Value:

DataSource

The DataSource instance.

NOTE
This method returns the DataSource instance even if the dataSource option of the widget was given a simple array.
See Also

getInstance(element)

Gets the instance of a widget found using its DOM node.

Parameters:
element:

DOM Node

|

jQuery

The widget's container.

Return Value:

Object

The widget's instance.

The following code gets the RangeSelector instance found in an element with ID myRangeSelector:

// Modular approach
import RangeSelector from 'devextreme/ui/range_selector';
...
let element = document.getElementById("myRangeSelector");
let instance = RangeSelector.getInstance(element);

// Non-modular approach
let element = document.getElementById("myRangeSelector");
let instance = DevExpress.ui.dxRangeSelector.getInstance(element);
See Also

getSelectedRange()

Deprecated

Use the getValue() method instead.

Gets the currently selected range.

Return Value:

Object

An object representing the start and end values of the currently selected range.

See Also

getSize()

Gets the current widget size.

Return Value: BaseWidgetOptions_size

The current widget size.

Returns an object with the following fields.

  • width
    The width of the widget in pixels.
  • height
    The height of the widget in pixels.
See Also

getValue()

Gets the currently selected range.

Return Value:

Array<Number | String | Date>

The start and end values.

See Also
Show Example:
jQuery

In this example, a click on the 'Get selected range' button displays the currently selected range. Here, the getValue() method is used to obtain this range.


                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

hideLoadingIndicator()                





            

                
Hides the loading indicator.


            


            

                                            




            

            

            


                

                    
                

            

                
Although the loading indicator hides automatically once the widget is ready, you can hide it from code at the required moment using this method.



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Show Example:


        

                
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In this example, data is loaded with five seconds delay. You can show/hide the loading indicator using the buttons under the widget. Note that the loading indicator can be displayed or concealed manually at any time no matter whether the data is loaded or not.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

instance()                





            

                
Gets the widget's instance. Use it to access other methods of the widget.


            


            

                                            




            

            

            


                

                            

            

                Return Value: 
Object


            

            
 
This widget's instance.



        


                

            

                
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In the following example, the instance() method is used to get access to the range selector options. This method is not called like the other methods. To call the instance() method, the following construction is used.



<!--JavaScript -->$("#rangeSelectorContainer").dxRangeSelector("instance")



Click the button below to display the currently selected range.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

off(eventName)                





            

                
Detaches all event handlers from a single event.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
eventName: 
String



            
The event's name.




                            

                        

                            

            

                Return Value: 
Object


            

            
 
The object for which this method is called.



        


                

            

                
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off(eventName, eventHandler)                





            

                
Detaches a particular event handler from a single event.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
eventName: 
String



            
The event's name.



            
eventHandler: 
function



            
The event's handler.




                            

                        

                            

            

                Return Value: 
Object


            

            
 
The object for which this method is called.



        


                

            

                
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on(eventName, eventHandler)                





            

                
Subscribes to an event.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
eventName: 
String



            
The event's name.



            
eventHandler: 
function



            
The event's handler.




                            

                        

                            

            

                Return Value: 
Object


            

            
 
The object for which this method is called.



        


                

            

                
Use this method to subscribe to one of the events listed in the Events section. 



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on(events)                





            

                
Subscribes to events.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
events: 
Object



            
Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}




                            

                        

                            

            

                Return Value: 
Object


            

            
 
The object for which this method is called.



        


                

            

                
Use this method to subscribe to several events with one method call. Available events are listed in the Events section.



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option()                





            

                
Gets all widget options.


            


            

                                            




            

            

            


                

                            

            

                Return Value: 
Object


            

            
 
The widget's options.



        


                

            

                
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In this example, the option() method is used to obtain the value of the behavior | allowSlidersSwap option and display it under the range selector. To change this value, use the check box below.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

option(optionName)                





            

                
Gets the value of a single option.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
optionName: 
String



            
The option's name or full path.




                            

                        

                            

            

                Return Value: any
            

            
 
This option's value.



        


                

            

                
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In this example, the option(optionName) method is used to obtain the value of the behavior | allowSlidersSwap option and display it under the range selector. To change this value, use the check box below.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

option(optionName, optionValue)                





            

                
Updates the value of a single option.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
optionName: 
String



            
The option's name or full path. 



            
optionValue: any

            
This option's new value.




                            

                        

                    
                

            

                
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In this example, the option(optionName, optionValue) method is used to set the value of the behavior | allowSlidersSwap option at runtime. To change this value, use the check box below.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

option(options)                





            

                
Updates the values of several options.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
options: 
Object



            
Options with their new values.




                            

                        

                    
                

            

                
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In this example, the option(options) method is used to alter a set of options at once. To change the values of the behavior | allowSlidersSwap and scale | showMinorTicks options, use the check box below.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

print()                





            

                
Opens the browser's print window.


            


            

                                            




            

            

            


                

                    
                

            

                
View Demo



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render()                





            

                
Redraws the widget.


            


            

                                            




            

            

            


                

                    
                

            

                
Normally, the widget redraws itself automatically after the browser window is resized. But on rare occasions, you may need to request the redrawing, for example, after the widget's container is resized. For this purpose, call the render() method.



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render(skipChartAnimation)                





            

                
Redraws the widget.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
skipChartAnimation: 
Boolean



            
Specifies whether to animate the background chart on render.




                            

                        

                    
                

            

                
When the size of a range selector container changes at runtime, the range selector should be redrawn explicitly. To do this, call its render(skipChartAnimation) method.



If your range selector contains a chart in the background, you can specify whether or not to animate it on render. Pass false as the parameter to animate the chart on redraw. Otherwise, pass true or call the render method without parameters.



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In this example, you can change the container size using the button below. In order to redraw the range selector after the container size is changed, its render method is called. The chart within the range selector is animated on redraw because false is passed as the parameter to the render method. 

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

setSelectedRange(selectedRange)                




                Deprecated
                

                    
Use the setValue(value) method instead.


                


            

                
Sets a specified range.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
selectedRange: 
Object



            
An object representing the start and end values of the selected range to be set.



                

                    Object structure:
                

    

            
startValue: 
Date

 | 
Number

 | 
String



            
An end value of the selected range.



            
endValue: 
Date

 | 
Number

 | 
String



            
An end value of the selected range.



    


                            

                        

                    
                

            

                
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setValue(value)                





            

                
Sets the selected range.


            


            

                                            




            

            

            


                

                        

                            Parameters:
                            

                                            
value: 
Array<Number | String | Date>



            
New start and end values.




                            

                        

                    
                

            

                
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Show Example:


        

                
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In this example, the [5, 8] range is selected after the RangeSelector widget is displayed. Change the selected range and click the 'Set default selected range' button. The [5, 8] range will be selected using the setValue method.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

showLoadingIndicator()                





            

                
Shows the loading indicator.


            


            

                                            




            

            

            


                

                    
                

            

                
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Show Example:


        

                
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In this example, the loading indicator is displayed until data is ready (5 seconds in this example). You can show and hide the loading indicator using the corresponding buttons below.

                            

                            

                                    

                                        

                                    

                            

                            

                                    

                                        

                                    

                            

                    

                

        

    



        

        

                
                            

svg()                





            

                
Gets the widget's SVG markup.


            


            

                                            




            

            

            


                

                            

            

                Return Value: 
String


            

            
 
The widget's SVG markup.



        


                

            

                
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Click the Get SVG below the range selector, and the SVG copy of this range selector will appear.